• broadened SHA-384/512 support
  -- to compilers with no ULLONG_MAX in limits.h
  -- e.g IBM C (xlC 6.0.0) on AIX 4.3.3
  -- thanks to Chris Carey for suggestions
  and technical expertise
  
• improved use of static storage class in transforms
  -- detection of Intel arch. now done in Makefile.PL
  -- NB: static not used if compiling for thread safety
  
• minor changes to documentation